The mysterious origins of Mercury’s hollows might answer bigger questions

The more we discover about Mercury, the weirder it seems. For instance, despite the fact that daytime temperatures there soar to 800 degrees Fahrenheit (427 degrees Celsius), ice encases the shadowed crater floors on its poles. The tiny planet should be devoid of the ice and other volatiles — compounds that can easily vaporize —Continue reading “The mysterious origins of Mercury’s hollows might answer bigger questions”
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